Faculty Advisor

Bitar, Stephen John

Faculty Advisor

McNeill, John A.

Sponsor

Allegro Microsystems

Abstract

Giant Magnetoresistance (GMR) is the phenomenon of thin film metallic materials changing their resistances up to 50% in magnetic fields resulting in improved sensitivity when compared to existing Hall Effect devices. This project explores using GMR in a guitar pickup application comparable to inductive and Hall Effect types. A GMR-based prototype was designed, constructed and tested on the basis of sensitivity, bandwidth, signal-to-noise ratio, and power consumption. Results show that GMR is a viable alternative to both inductive and Hall Effect pickups with improved performance in several areas.

Publisher

Worcester Polytechnic Institute

Date Accepted

March 2016

Major

Mechanical Engineering

Major

Electrical and Computer Engineering

Project Type

Major Qualifying Project

Additional files

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